Allometric height-diameter equations for Pinus pseudostrobus Lindl

摘要: Silvicultural practices used for forest management in the Indigenous Community of Nuevo San Juan  Parangaricutiro (CINSJP its initials Spanish), Michoacan, Mexico, are important sustainability woodlands. For this purpose, techniques that provide reliable and current quantitative estimates required. The aim was to t an equation describes allometric relationship between total height normal diameter (Th-nd) Pinus pseudostrobus CINJSP forests. Data were obtained from P. stands have been managed with Development Method (SDM) at di erent stages according program. research area is 2,200 2 500 masl, has a temperate type C (w2) climate, located southwest Purhepecha Plateau within Trans-Mexican Volcanic Belt region. sample size consisted 169 height-normal data pairs. Ten models evaluate goodness tested, choosing three based on lowest values sum square errors prediction (SSE) root mean squared error (RMSE), highest adjusted coe cients determination signi cance their parameters. deviations smaller than 0.01 m. three-parameter T h = K + 38.06004/1+6.033101exp(0.066439dn)  proved be statistically more stable rest, it also shows less one meter per tree 1% entire population.